1 /*
2 * Copyright (c) 2009, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * This file was originally generated by JSLC
28 * and then hand edited for performance.
29 */
30
31 package com.sun.scenario.effect.impl.sw.sse;
32
33 import com.sun.scenario.effect.Effect;
34 import com.sun.scenario.effect.FilterContext;
35 import com.sun.scenario.effect.ImageData;
36 import com.sun.scenario.effect.impl.HeapImage;
37 import com.sun.scenario.effect.impl.Renderer;
38 import com.sun.javafx.geom.Rectangle;
39 import com.sun.javafx.geom.transform.BaseTransform;
40 import com.sun.scenario.effect.impl.state.BoxRenderState;
41
42 public class SSEBoxShadowPeer extends SSEEffectPeer<BoxRenderState> {
43
44 public SSEBoxShadowPeer(FilterContext fctx, Renderer r, String uniqueName) {
45 super(fctx, r, uniqueName);
46 }
47
48 @Override
49 public ImageData filter(Effect effect,
50 BoxRenderState brstate,
51 BaseTransform transform,
52 Rectangle outputClip,
53 ImageData... inputs)
54 {
55 setRenderState(brstate);
56 // NOTE: for now, all input images must be TYPE_INT_ARGB_PRE
57
58 // Calculate the amount the image grows on each iteration (size-1)
59 boolean horizontal = (getPass() == 0);
60 int hinc = horizontal ? brstate.getBoxPixelSize(0) - 1 : 0;
61 int vinc = horizontal ? 0 : brstate.getBoxPixelSize(1) - 1;
62 if (hinc < 0) hinc = 0;
63 if (vinc < 0) vinc = 0;
64 int iterations = brstate.getBlurPasses();
65 float spread = brstate.getSpread();
66 if (horizontal && (iterations < 1 || (hinc < 1 && vinc < 1))) {
67 inputs[0].addref();
68 return inputs[0];
69 }
70 // Calculate the amount the image will grow through the full operation
71 // Always upgrade to the next even amount of growth
72 int growx = (hinc * iterations + 1) & (~0x1);
73 int growy = (vinc * iterations + 1) & (~0x1);
74
75 // Assert: rstate.getEffectTransformSpace() == UserSpace
76 // NOTE: We could still have a transformed ImageData for other reasons...
77 HeapImage src = (HeapImage)inputs[0].getUntransformedImage();
78 Rectangle srcr = inputs[0].getUntransformedBounds();
79
80 HeapImage cur = src;
81 int curw = srcr.width;
82 int curh = srcr.height;
83 int curscan = cur.getScanlineStride();
84 int[] curPixels = cur.getPixelArray();
85
86 int finalw = curw + growx;
87 int finalh = curh + growy;
88 boolean force = !horizontal;
89 while (force || curw < finalw || curh < finalh) {
90 int neww = curw + hinc;
91 int newh = curh + vinc;
92 if (neww > finalw) neww = finalw;
93 if (newh > finalh) newh = finalh;
94 HeapImage dst = (HeapImage)getRenderer().getCompatibleImage(neww, newh);
95 int newscan = dst.getScanlineStride();
96 int[] newPixels = dst.getPixelArray();
97 if (iterations == 0) {
98 // The last "fixup" iteration of 2 should have no spread.
99 spread = 0f;
100 }
101 if (horizontal) {
102 filterHorizontalBlack(newPixels, neww, newh, newscan,
103 curPixels, curw, curh, curscan,
104 spread);
105 } else if (neww < finalw || newh < finalh) {
106 // Use BLACK for shadow color until very last pass
107 filterVerticalBlack(newPixels, neww, newh, newscan,
108 curPixels, curw, curh, curscan,
109 spread);
110 } else {
111 float shadowColor[] =
112 brstate.getShadowColor().getPremultipliedRGBComponents();
113 if (shadowColor[3] == 1f &&
114 shadowColor[0] == 0f &&
115 shadowColor[1] == 0f &&
116 shadowColor[2] == 0f)
117 {
118 filterVerticalBlack(newPixels, neww, newh, newscan,
119 curPixels, curw, curh, curscan,
120 spread);
121 } else {
122 filterVertical(newPixels, neww, newh, newscan,
123 curPixels, curw, curh, curscan,
124 spread, shadowColor);
125 }
126 }
127 if (cur != src) {
128 getRenderer().releaseCompatibleImage(cur);
129 }
130 iterations--;
131 force = false;
132 cur = dst;
133 curw = neww;
134 curh = newh;
135 curPixels = newPixels;
136 curscan = newscan;
137 }
138
139 Rectangle dstBounds =
140 new Rectangle(srcr.x - growx/2, srcr.y - growy/2, curw, curh);
141 return new ImageData(getFilterContext(), cur, dstBounds, inputs[0].getTransform());
142 }
143
144 private static native void
145 filterHorizontalBlack(int dstPixels[], int dstw, int dsth, int dstscan,
146 int srcPixels[], int srcw, int srch, int srcscan,
147 float spread);
148
149 private static native void
150 filterVerticalBlack(int dstPixels[], int dstw, int dsth, int dstscan,
151 int srcPixels[], int srcw, int srch, int srcscan,
152 float spread);
153
154 private static native void
155 filterVertical(int dstPixels[], int dstw, int dsth, int dstscan,
156 int srcPixels[], int srcw, int srch, int srcscan,
157 float spread, float shadowColor[]);
158 }